The manager module drops its bespoke ECIES at-rest envelope and the node-private-key mount.
A module is never given a node's private key, so it cannot open an envelope -- the refresh
token is now delivered to it as cleartext by the host, unsealed from an ordinary sealed box.
- sealedbox.ts: a dependency-free NaCl crypto_box_seal (node:crypto for X25519, transcribed
XSalsa20-Poly1305 and BLAKE2b-24), byte-compatible with Go's box.SealAnonymous. It SEALS
only -- opening is the host's job. Proven by a cross-language test in mesh-control.
- adopt: reads the node's PUBLIC key from the delivered bound facts and seals the operator's
refresh token to it, handing out only the box.
- refresh: reads the refresh token as cleartext the host mounted, calls the vendor, re-seals
a rotated token to the node's public key, submits only { access token, box }.
- module.json: a model-access holder now -- binds the facts, binds the refresh token as a
sealed secret; no keys dir, no MESH_NODE_SEALING_* mount.
Claude-Session: https://claude.ai/code/session_01LrgweAeERJYBg88c5cKDzF
Phase C of vendor-agnostic model-access (ADR 0050/0054). Two TypeScript
runtime modules:
- anthropic-manager: the refresh token is sealed at rest to the manager
node's own key (atrest.ts, envelope encryption over X25519) and opened
ONLY on the manager node. adopt seals the first envelope; refresh opens
it, calls the Anthropic OAuth token endpoint, re-seals a rotated refresh
token, and hands the control plane only the access token plus the opaque
envelope. Also polls licence-grain usage (ADR 0054).
- anthropic-consumer: writes the delivered access token to
~/.claude/.credentials.json, access-token-only, atomically (the refresh
token is never delivered); reports session-grain usage from the CLI
transcripts; a fail-closed identity guard (expected-uuid plumbing is a
flagged TODO).
Both run as scheduled containers (ADR 0053). Pure logic covered by
node --test fixtures (at-rest round-trip, credential strip, transcript
sum, refresh merge).
Claude-Session: https://claude.ai/code/session_01LrgweAeERJYBg88c5cKDzF
jschoubben